FCP X Music and sound browser is empty

I download additional content since FCP X 10.0.2 and I have add more sound FX and music, Itune playlist, etc. yesterday my music and sound FX were there.
Today, well 1 hour ago I try to find some Sound FX to use in my project and FCP X Music and sound browser is empty. I delete my preference and I have Digital Rebellion Pro Maintenance Tools to try to fix. Shout down my mac but still no luck.

I check and all my music and sound FX are in my computer but FCP X don't see them.

You can actually drag folders containing sound files into the musik browser and it will add it to the list. As workaround you could try and drag your iTunes music folder into Xs music browser. I did this once when X didn't see my Soundtrack Pro Sound FX

At the places I work we've been having a different problem where X doesn't let me pull in music from the sound browser. Then I download again, two versions appear in X and one can be pulled in. In our case there seems to be a reappearing user problem.